Motorhome Leisure Batteries- Full charging & upkeep information

Received a motorhome, campervan or caravan? Need to know find out how to care in your home leisure battery, find out how to cost it, keep it and customarily preserve it going, particularly in winter? Or fearful about it shedding or not holding cost? Right here’s every thing it’s essential learn about your motorhome leisure battery.

Don’t overlook to seize your FREE motorhome upkeep guidelines under

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Table of Contents

Motorhome Leisure Batteries

Let’s be honest- most new motorhomers or campervanners don’t actually take into consideration their batteries till they’ve an issue. Both the facility goes, or the battery isn’t holding a cost or they arrive at their motorhome or camper after winter to seek out every thing is flat and there’s no strategy to repair it.

If that’s you, don’t worry- you’re not alone. However a fundamental degree of battery upkeep is essential to maintain your leisure batteries wholesome and completely satisfied for his or her lifespan- and make that life span so long as it may be. Your motorhoming may also be a lot simpler for those who perceive what your leisure battery is there for and how one can assist it!

It could possibly additionally assist in your yearly motorhome habitation verify (or for those who do your personal) you probably have a fundamental understanding of the way it all works.

Motorhome leisure batteries for learners

So, let’s begin in the beginning and go over some fundamentals.

When you have a motorhome or campervan, you’ve most likely received each an engine starter battery (the one which begins your car and is usually discovered within the engine bay) and a leisure or home battery.

NOTE: If you’re shopping for a brand new CARAVAN, they’re usually provided and not using a leisure battery, so you have to to purchase one earlier than your first journey.

The motorhome leisure battery is often NOT within the engine, and is discovered someplace within the camper habitation space. Ours is below the driving force seat, however on our final van it was below the ground close to the oven. Examine your motorhome handbook for those who’re unsure.

On this submit, we’re going to be focussing simply on the leisure battery, so that you shouldn’t have to go wherever close to the engine bay! We’ll be speaking concerning the fundamentals of leisure batteries, how to decide on one, find out how to care and keep them (particularly in winter!) and what to do if they’re shedding cost, received’t cost or appear to be fully useless.

Don’t worry- this submit isn’t for knowledgeable electricians. You don’t want to know amp hours, volts or ‘deep-cycle’ in an effort to care in your motorhome batteries. And no maths is required (okay, a teeny tiny bit would possibly be- however I promise you are able to do it.)

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Why do you want a motorhome leisure battery?

The home leisure battery runs all the facility within the habitation space of your van, everytime you’re not plugged in to mains energy. It’s used for habitation lights, water, rest room, blown-air camper heating, 12v chargers and the rest electrical.

IMPORTANT– the leisure battery solely provides 12v in your van. So, in case you are on battery energy, you CANNOT use your 240v (regular 3-pin plug) sockets. So no electrical kettles, or toaster, or microwave (until you’ve gotten a motorhome generator or an invertor- however that’s a submit for an additional day.)

So as to have the ability to present that energy, the battery ‘shops’ it. Consider it like a bucket of water. You could put energy into the battery. When it’s full, no extra energy could be saved. Then, as you employ the facility, it’s drained down. As soon as it’s gone, it’s gone till you replenish the facility.

The massive distinction between your campervan leisure battery and the bucket of water is that you simply CANNOT fully empty the leisure battery- doing it will kill it. In actuality, you possibly can solely use about 50% of the facility in your leisure battery earlier than it’s essential cease draining and begin recharging.

Can’t I simply plug into mains energy on a regular basis? Do I really want a leisure battery in my motorhome?

You can, however the different job of a leisure battery is to easy out irregularities within the energy. With out this, you can find yourself damaging home equipment resulting from energy spikes or having home equipment which want fixed energy (like alarms or trackers) going on and off often resulting from energy fluctuations.

Nonetheless, for those who plan to spend most of your time in your motorhome, campervan or caravan on a campsite, you don’t want to purchase a top-of-the-range leisure battery as you received’t be placing it by way of as many cycles as somebody who primarily stays off-grid.

Why is your motorhome or camper leisure battery shedding cost?

The opposite factor to know is that the facility in your battery will not be like water in a sealed container. Similar to water in a bucket left outdoors on a heat sunny day, the facility in your leisure battery will slowly… disappear (no, it doesn’t evaporate like water!)

It’s like once you get a static shock and your hair stands on finish. Ultimately, that power simply dissipates. The identical factor occurs to your motorhome batteries (each engine and leisure).

That’s why you usually return to your motorhome, camper or caravan after winter or a interval of inactivity and discover the batteries flat. Even for those who’ve turned every thing off and also you’re satisfied nothing is inflicting the facility to empty finally, over time, the battery will likely be absolutely discharged and/or useless.

However don’t worry- with correct upkeep and care, you possibly can defend your batteries, even in chilly climate, and use them for a number of years.

motorhome storage

Distinction between an engine battery and a home leisure battery

The two sorts aren’t the identical and you should purchase the suitable battery for the job.

Engine starter batteries (or automobile batteries) have thinner plates and are designed for brief, sharp bursts of excessive energy in an effort to crank your engine and get it going.

Leisure batteries are designed for gradual launch over a chronic time frame, adopted by re-charging. That is known as ‘deep-cycling’. Leisure batteries are generally known as auxillary batteries too.

“Can I exploit a automobile battery as a substitute of a leisure battery?”

You can’t use a leisure battery in your engine (it doesn’t have the ‘oomphf’ to get the engine began), however you can use an engine battery as a leisure for those who actually actually needed to. Nevertheless it won’t be wherever close to as environment friendly and we don’t advocate it.

There’s a sort of battery which might do each jobs (an AGM battery), however it’s not generally used for motorhomes.

What number of leisure batteries do you want in your motorhome or campervan?

Nice question- and the easy reply is, it depends upon your van and the way you propose to make use of it.

On our final motorhome, we had an electrical mattress. We liked the concept of this, as a result of it made life simpler, however, in actuality, that factor was stupidly power-hungry. For that reason, we determined to suit a second leisure battery into the motorhome (and it’s one of many many causes we determined to simplify and downsize our motorhome.)

IMPORTANT: You MUST solely put a leisure battery within the applicable battery compartment. If there isn’t house for a second battery, you shouldn’t match one. Additionally, you have to to declare becoming a second leisure battery to your insurance- they may require you to get it professionally checked.

On our newest van, and in a number of vans we’ve used, there has solely been one leisure battery- and it’s been completely nice. We love going motorhome wild tenting, and keep off-grid away from campsites as usually as we are able to, and we nonetheless don’t really feel the necessity for a second leisure battery (though we do have a photo voltaic panel, which makes a giant distinction.)

Motorhome wild tenting guides for the UK & Europe

Motorhome wild parking guide

After all, the extra batteries you’ve gotten, the LONGER you’ll have battery energy for. Word that I say longer, no more. You’ll be able to’t match 20 12v leisure batteries and immediately have 240v energy.

How lengthy ought to a motorhome leisure battery final?

It is a widespread query, with two potential solutions.

Do you imply how lengthy can you employ electrical gadgets in your camper earlier than the battery ought to not be used? That depends upon the scale of your battery and the way a lot energy you’re utilizing. The extra you’ve gotten switched on, and the extra ‘power-hungry’ the equipment, the faster the battery will drain.

The quantity on the battery (for instance, ‘110’) refers to ‘Amp-hours’ (Ah) which is the capability of the battery- or how a lot energy it could actually retailer. In easy phrases, it might provide 1A for 110 hours or 10A for 11 hours.

Or do you imply how lengthy do you have to preserve a leisure battery earlier than changing it for a brand new one? The lifetime of a leisure battery depends upon a number of issues:

  • how incessantly it’s discharged
  • how deeply it’s discharged
  • how shortly it’s recharged

To ensure that your battery to final so long as potential, it’s essential preserve it in an excellent state of cost. If it discharges to too low a degree and is left for weeks (and even months throughout winter) with out being recharged, then it’s going to most likely die. And also you want a brand new one.

With correct care, you possibly can count on a motorhome leisure battery to final round 5 years earlier than it ought to be changed. After all, if issues go incorrect or aren’t maintained, you can find yourself shopping for a brand new leisure battery yearly!

Varieties of motorhome leisure batteries

There are a lot of varieties of leisure batteries, and also you’ll hear all types of thrilling phrases thrown about like ‘lead-acid’, ‘moist batteries’ and lithium ion. Let’s take a look on the choices.

Lead-acid leisure batteries

The commonest type of leisure battery in a motorhome or camper is a lead-acid (though lithium ion is rising in popularity). These are additionally known as ‘moist’ batteries as a result of… they’ve liquid inside them.

Lead acid batteries will self-discharge over time. The velocity of this depends upon make, age and so forth. You want to have the ability to preserve any eye on electrolyte ranges, and high up as needed.

You may get ‘open’ and ‘sealed’ lead-acid batteries. Open are the kind it’s a must to high up. Sealed are the ‘maintenance-free’ ones (extra on these under.)

Lithium ion leisure batteries

Lithium batteries are one other type of deep cycle battery. They’re absolutely self-contained (upkeep free) and have their very own cost supervisor. As a result of they don’t have lead, they usually weigh round half as a lot as an equivelant lead-acid battery- this could actually assist along with your motorome payload.

They may also be discharged (absolutely) and quickly recharged whereas retaining a secure voltage degree. They’re nice for motorhome house owners who use their autos ‘off-grid’. They don’t self-discharge, are largely maintenance-free and work properly alongside an inverter.

Nonetheless, they’re expensive- as a lot as 5 occasions the price of an equal, good high quality, lead-acid battery

Motorhome touring in Spain- Cabezo Negro
How usually you discharge and recharge your motorhome leisure battery could make a distinction!

Different varieties of leisure batteries

  • AGM batteries – Absorbent Glass Mat batteries have matting between the plates that filter the sulphuric acid contained in the battery, making it extra resilient and capable of face up to a higher variety of charging cycles than a typical lead-acid. They can be utilized as each starter and leisure batteries. The draw back is that they’re much costlier to purchase.
  • Gel batteries – These are utilized in autos with a excessive threat of injury or crashing, corresponding to quad bikes or jet skis. They use gel fairly than acid, which reduces the danger if they’re broken in an accident. Some international manufacturers of motorhomes or campers at the moment are fitted with these.
  • Upkeep-free batteries – Standard batteries have detachable caps to permit the acid ranges to be checked and topped up with deionised water. A brand new possibility is a maintenance-free battery, which is a sealed unit and can’t be topped up, however doesn’t have to be, because of the manner it’s charged.

Shopping for & Selecting a motorhome or camper leisure battery

If you end up needing to purchase a leisure battery for a motorhome, campervan or caravan, it may be slightly overwhelming.

As a tough information, the heavier the battery is, the extra lead it comprises= capacity to carry a bigger capability of cost. If you’d like a deep biking leisure battery (which you most likely do) a heavy battery is an efficient place to begin.

If you’re going to be spending most of your in a single day stops on motorhome membership campsites with mains hookup, a reasonable battery may be all you want. When linked to a mains provide, the battery is then solely there to ‘easy out’ the 12V output from the camper’s built-in charger.

Nonetheless, for those who plan to make use of CS/CL websites with out electrical hook-up or wish to keep off-grid, an excellent high quality, high-capacity battery is important. Additionally, for those who like to remain in a single place for some time (and due to this fact the alternator isn’t recharging the battery), you’ll want an excellent leisure battery for that too. Solely purchase batteries which have been manufactured within the final 12 months- outdated batteries might have already got sulphur corrosion.

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In addition to selecting the right mannequin, you additionally have to ensure you aren’t being offered a starter battery instead of a leisure battery.

The best choice to make sure you get a leisure battery appropriate for a leisure car is to purchase one from the Verified Leisure Battery Scheme.

Nationwide Caravan Council Verified Leisure Battery Scheme

This scheme was arrange by the Nationwide Caravan Council to offer house owners peace of thoughts concerning the high quality of their battery. In the event you purchase a leisure battery which shows the scheme’s brand, then it has been deemed dependable and match for function by the NCC.

All verified leisure batteries will show the scheme’s brand in addition to which class it falls into.

NCC accreditation
NCC Caravan and Motorhome Leisure Battery Verification Scheme

How are leisure batteries categorised below the NCC scheme?

There are three classes of verified leisure battery:

  • Class A – Excessive storage capability batteries to be used by caravan and motorhome customers preferring to function away from {an electrical} hook-up level (individuals who do a number of off-grid tenting)
  • Class B – Designed for customers who use electrical hook-up on nearly all of their journeys, but additionally require higher energy capability. Gadgets corresponding to motor movers (for caravanners) are prone to require a Class B battery even when electrical hook-up is used
  • Class C – Verified batteries appropriate to be used when electrical hook-up will not be obtainable for a short while solely

Are all leisure batteries lined by the scheme?

At current, only some producers are included. Extra are anticipated to hitch within the close to future, and the NCC will publish updates as and when applicable. You could find out extra here.

What impacts a leisure battery’s efficiency?

There are a lot of issues which might have an effect on the efficiency and lifespan of a battery.

  • Age – Most batteries have a marked lower in efficiency after 5 years.
  • Dimension – Clearly, the larger your battery (in Ah, not bodily dimension), the longer you should use your home equipment for.
  • Consumption– Having stated that, for those who’re working a number of electrical home equipment directly, you’ll drain the battery sooner and it’ll have to be recharged sooner and far more usually. The extra you do that, the extra you degrade efficiency and lifetime of the battery.
  • Temperature – Batteries hate chilly. The colder the temperature, the more serious the battery goes to carry out. They actually do sulk. In the event you verify your battery, you’ll see the ‘amp hours’ ranking will likely be based mostly on a loopy heat temperature of round 25c, with every diploma decrease inflicting a 1% drop in efficiency. For instance, a 110Ah battery which is working in 15c temperature will really solely carry out as a 100Ah. If that’s not cause sufficient to go spend your winters in Spain, I don’t know what’s!

The actual fact of the matter is, you are able to do calculations all you want, however all the time err on the facet of warning and assume it’s essential recharge your leisure battery extra incessantly, and for longer, than you would possibly suppose.

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Taking care of your Leisure Battery

So, in addition to a bucket of water, consider your battery like a pampered canine. It needs to be heat (however not TOO heat), dry, given consideration, fed usually and given plenty of day off to sleep. (I’ve a cocker spaniel curled up on my lap proper now and consider me, the analogy is working!)

Listed here are some tricks to get probably the most out of your leisure battery.


  • Cost your battery after buy. Bear in mind, they’re discharging whereas simply sitting there on the shelf in Halfords.
  • Be sure to set up the battery appropriately, retaining it upright and correctly secured (most motorhomes have straps for this. Use high-quality clamps for an excellent connection.
  • Maintain the terminals clear and free from corrosion. Some folks add a lightweight coat of vaseline/ petroleum jelly- we don’t do that however we do verify them often.
  • Be sure to know which home equipment are always drawing on the battery. Trackers, alarms or safety, rearview cameras, wifi dongles or the clock on the dashboard are all widespread culprits.
  • Commonly verify the water ranges within the battery. You do that by unscrewing the caps and ensuring the electrolyte degree covers the lead plates. If not, high up with deionised water as required. At all times put on full security gear when inspecting and sustaining the battery– that stuff is corrosive!
  • Make certain the gasoline aid tube stays securely in place.
  • Recharge the battery as soon as it reaches 50% energy. By no means enable a battery to fully run down as this could kill the battery/ drastically cut back the lifespan
  • In the event you aren’t going to be utilizing the battery for some time, give it a correctly good cost after which retailer it in a cool surroundings with an applicable charger. You’ll be able to depart within the van you probably have an clever charging system or a trickle charger.


  • Go away your battery in a discharged state for a chronic time frame In the event you’ve been utilizing the battery, ensure that it’s charged up once more earlier than you allow it in storage/ unused. In the event you don’t do that, a white deposit will type on the plates and the battery will likely be unusable (that is known as sulphation)
  • Over-charge your leisure battery. A completely charged 12V battery ought to have a voltage of 12.7V. Overcharging could be simply as dangerous as undercharging for killing off a battery.
  • Over-discharge your battery. If the voltage falls to 11.70V cost instantly! If it will get a lot decrease, you could not be capable to reserve it.
  • Reverse the polarity in your charging leads- this could harm the battery
  • Let something fall throughout the battery terminals. A 12V battery is unlikely to trigger electrocution, but when the terminals or the cables are shorted-out, it could actually trigger a hearth in your motorhome.
  • Overlook that the stuff in a lead-acid battery is ACID. I’ve seen it burn by way of denims when my husband by chance spilt some. Watch out and preserve properly away from youngsters and pets.
  • retailer your battery wherever too heat, or purchase a radiator, or in direct daylight

Sustaining your leisure battery throughout Winter

Or, extra usually “My motorhome has been in storage for winter. Why is the battery now flat?”

Prepare RV motorhome or campervan for winter storage- winterizing tips for campers and leisure vehicles
Caring in your motorhome in winter- take care of your leisure battery

Sadly, most individuals solely uncover they’ve an issue with both their starter battery or their leisure battery after they return to their car after a number of months. Usually that is after winter (though on this age of world lockdowns and pandemics, you’ll most likely not be utilizing your motorhome as a lot as you deliberate!)

The double-trouble is that you’ve each lack of use (time whereas the battery quietly discharges) and chilly (which makes the battery depressing.) The 2 collectively imply that the battery discharges extra shortly, and is much more reluctant to get well afterwards.

Listed here are some suggestions for caring for and sustaining your leisure battery over winter:

READ MORE: Full listing of every thing it’s essential do to organize your motorhome for winter storage

  • Give it an excellent cost earlier than you set it away for winter
  • Go away it with some type of trickle charger, however leaving it plugged into mains for months would possibly harm the battery too. (The usual on-board charger in lots of motorhomes could cause over-charging)
  • When you have an clever battery charging unit (which displays the battery and adjusts charging voltage and present, you possibly can depart that plugged in all winter.
  • If you’re unable to connect a charger completely, both cost your leisure battery as soon as a month or take away it from the car, carry it house and put it on cost. After all, watch out if this implies your alarm/ tracker turns into disabled- learn extra about motorhome safety right here
  • Make certain it doesn’t get too chilly. When you have inside battery storage within the motorhome, it ought to be okay until it’s REALLY chilly, however you probably have exterior storage you would possibly wish to take away it to keep away from harm.
  • If you’re storing the van at house and have an influence provide, you possibly can put it on a timer (4/5 hours a day) so it doesn’t overcharge
  • You should utilize a photo voltaic panel to offer cost to your battery. Simply remember that photo voltaic panels are much less efficient in winter (weaker daylight) and likewise for those who use a motorhome cowl it might cowl the photo voltaic panel, making it ineffective.

Methods to cost a leisure battery on a motorhome or camper

Most motorhomes and campers have a number of methods of charging the leisure battery:

  • Through the mains when on hook-up (battery charger)
  • Utilizing the engine (alternator) when on the road- that is usually known as ‘split-charge’
  • Photo voltaic panel
  • Generator
  • Wind turbines (these are widespread on boats, however much less widespread on motorhomes or campers.)

Methods to cost a leisure battery from mains/ electrical hook up

This one is simple. Offering you’ve gotten a battery charger (extra on these under), you simply plug within the mains, flip it on if not already, and loosen up. It’s that easy on most trendy motorhomes and campervans.

Methods to cost a leisure battery whereas driving

Bear in mind, it’s going to take time to recharge a battery. Working your engine for quarter-hour will not be going to be sufficient.

Additionally, the alternator was not designed for leisure batteries- it was designed for starter batteries and that’s its essential focus. So it’s essential enable time for the starter battery AND then the leisure battery to be recharged (it’s not linear like that, however all it’s essential know is it wants time!)

Additionally, because the battery voltage will increase (it will get extra charged), the present supplied by the alternator will reduce- because it must for the engine battery. So an alternator is unlikely to totally cost a leisure battery.

Discharge charges and maths. (DO NOT PANIC…)

For instance, you probably have a 100Ah (amp hour) battery (let’s ignore the temperature and simply assume it’s working to 100), and also you discharge (use) 50%, it’s essential exchange 50Ah

Let’s say the engine alternator has sufficient to offer 5A to the leisure battery. It should take 10 hours to recharge. That’s 10 HOURS of driving. Continuous.

When you have a much bigger battery, or two leisure batteries, you have to even longer.

Fortunately, many motorhome on-board battery chargers can provide 15-20amps, so it takes so much much less time- 2 or 3 hours. Let’s take a look at these in additional element.

Motorhome leisure battery guide
Motorhome leisure battery information

Motorhome Battery chargers defined

Utilizing the mains to cost the leisure battery (and generally the engine battery) is widespread in most motorhomes, however you have to a battery charger. There are a number of varieties of charger available- they do totally different jobs.

Primary chargers

The best is a fundamental unit which supplies a set output, often round 13.8 volts. These fundamental chargers are not often utilized in motorhomes nowadays, as a result of multi-stage chargers aren’t far more costly and are a lot better for the well being and lifespan of your battery. Primary chargers aren’t designed to be left linked long-term.

Multi-stage charger

A multi-stage charger offers cost at totally different voltages and currents relying on the state of cost of the battery. These are additionally known as upkeep chargers, though not many are designed to be left linked permanently- it is best to use a timer or disconnect and reconnect often.

Normally there are 3 phases:

  • Bulk cost mode: offers a most voltage and present to recharge the battery shortly. This often takes it to round 80% full.
  • Absorption: Offers a continuing voltage, however reduces present. Takes it to almost full cost.
  • Float cost: Offers lowered voltage and low present to maintain it close to absolutely charged with out harm.

You may get multi-stage prices with much more ranges, however the tough thought is identical.

Do not forget that a battery wants a charger with an output of at the very least 10% of the battery’s capability. For instance, a 100Ah battery will want at the very least a ten amp charger. Any much less will cut back the capability.

How large a battery charger do you want?

The larger the charger (16A as a substitute of 4A), the faster it’s going to cost up your battery. In the event you keep in mind our earlier instance about needing to exchange 50% of a 100A battery, a 16A charger would do it in simply over 3 hours, whereas a 4A one would wish 12.5 hours.

Photo voltaic Energy

Photo voltaic panels are available in two essential sorts: monocrystalline and polycrystalline. The most important distinction between the 2 varieties is dimension – a poly panel will usually be about 5% bigger than a mono for a similar quoted output.

Photo voltaic panels could be inflexible or flexible- for vans we advocate inflexible as they’re extra dependable and don’t usually have to be walked on.

How large a photo voltaic panel do I want?

The reply to this has nothing to do with the scale of your motorhome leisure battery. It has to do with how a lot power you propose to make use of. A small campervan with only some LED lights will want MUCH lower than an 8m motorhome with a fridge, heating, a 12v motorhome TV and who needs to cost plenty of electrical gadgets. The commonest dimension of photo voltaic panel is 80- 100W.

Additionally, photo voltaic panels are not often pretty much as good as they are saying they’re. For instance, a 100W panel might technically produce round 8A, however in actuality it will likely be that good – 5 or 6 amps may be extra lifelike. On cloudy days it’s even much less.

Motorhome using solar power to charge the leisure battery
Motorhome utilizing solar energy to cost the leisure battery

Regulator for solar energy

When you have a photo voltaic panel, you have to a regulator to regulate the cost going into the battery.

A typical photo voltaic panel in full daylight might produce round 22 volts, which is just too excessive for a 12-volt battery. The job of the regulator is to scale back this to a protected charging degree.

There are a lot of totally different photo voltaic regulators obtainable. Cheaper choices embody easy cut up cost or fundamental fastened voltage charging programs; multi-stage charging is healthier for those who can.

Some electrical items (corresponding to Sargent) are capable of take the facility from the photo voltaic unit and to up each the leisure and engine batteries as required.These programs usually have a most photo voltaic wattage that they will deal with, so be certain that the panel you select doesn’t exceed it.

Dangerous scent when charging

Often, you would possibly expertise a ‘rotten egg’ scent when your battery is recharging. This often signifies that the battery is being overcharged. The scent comes from gasses being emitted. These gasses might probably ignite and trigger explosions.

In the event you get this scent, verify if the battery feels sizzling to the contact. If is does, the battery is being overcharged and could possibly be irreparably broken. Even and not using a scent, concentrate on the temperature of your battery whereas charging as a sizzling battery usually means there’s a downside.

At all times have a window open to permit gases to flee whereas the battery is charging.

DO NOT disconnect the battery from the charger whereas it’s plugged into the mains- this might trigger a spark. Disconnect the mains, then take away the charger.

How do you repair a battery which received’t maintain a cost?

A trickle charger is one of the best ways to attempt to repair a leisure battery that won’t maintain a cost. Until it’s been run too low, through which case, see under.

How do you revive a leisure battery?

In the event you’ve by chance run your battery too low, gradual cost it for at the very least 24 hours and see if it revives. You are able to do this by way of a battery charger or plugging the motorhome into the mains.

Take the battery out of your camper, join it to a good battery charger, depart it on trickle cost for a few days (3-4 amps),then verify the voltage.

If it’s not rising, the battery might be unfixable and you have to to exchange it.

Checking a battery’s cost degree

Many motorhome leisure batteries have a lightweight or show to indicate the cost degree. They might not be 100% correct, however it will provide you with a tough thought.

A hand-held unit is usually extra correct, however pointless in most conditions. In the event you use a hand-held meter, 12.7+v means absolutely charged, whereas 12v or under means discharged. 12.4v is about 50%

You may as well use a hydrometer to measure the electrolytes within the cells. The studying ought to be between 1.1 (discharged) and 1.28 (absolutely charged).

Earlier than a studying, flip off all electrical home equipment, together with alarms, fridges and clocks that run off the battery. Failure to take action will end in an inaccurate studying. Additionally, don’t do a check for 4 hours after driving or utilizing a battery charger- a just lately used battery will give the next studying

Secure dealing with of a Lead Acid battery

Battery gasoline is explosive. If it ignites, it could actually trigger burns or extreme accidents. ies and flammable and lead-acid is corrosive. Earlier than you go wherever close to your lead-acid battery, do the next:

  • Put on applicable protecting clothes, gloves and eye-wear. Be warned- the acid can harm clothes
  • At all times take away the unfavourable terminal first when disconnecting a battery
  • By no means smoke or have a unadorned flame close to a battery
  • Sparks can generally happen when connecting up a battery and good high quality clamps are wanted. Momentary crocodile clips, usually provided with battery chargers, aren’t appropriate for everlasting connections.

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Got a motorhome, campervan or caravan? Want to know how to care for your leisure battery, how to charge it, maintain it and generally keep it going, especially in winter? Or worried about it losing or not holding charge? Here's everything you need to know about your motorhome leisure battery.

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